ST Radar 205 MHz -Ionospheric Data

This Ionospheric data is retrieved from the Stratosphere-Troposphere (ST) Radar operating at 205 MHz in the VHF band, and is the first wind profiler radar in the ~200 MHz frequency range, which constitutes 619 three-element Yagi–Uda antennae. It has a power aperture product of 1.6x10^8 Wm^2. System design, technical details and scientific applications of the 205 MHz radar are already reported [Samson et al., 2016; Mohanakumar et al., 2017; 2018]. The main beam can be positioned at any angle within of ±30° of the zenith and at all azimuth with 1° resolution. The data was archived with radar beam set to 8° towards north to satisfy the condition of perpendicularity, consistent with the estimate from IGRF12. The experiment configuration and parameters used are given in Table-1. The range resolution was 45 metres.本电离层数据取自工作于甚高频（VHF）波段205 MHz频段的平流层-对流层（ST）雷达，该雷达是首个工作于~200 MHz频段的风廓线雷达，由619副三元八木-宇田天线（Yagi–Uda antennae）组成。其功率孔径积为1.6×10^8 瓦·平方米。该205 MHz雷达的系统设计、技术细节与科学应用已有相关文献报道[Samson等，2016；Mohanakumar等，2017；2018]。其主波束可在天顶±30°范围内任意指向，方位角分辨率达1°且可覆盖全方位域。本次存档的数据采用指向正北8°的雷达波束，以满足垂直性条件，该设置与第12代国际地磁参考场（IGRF12）的估算结果一致。本实验所用的配置与参数详见表1，距离分辨率为45米。